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| author | Stanislav Kinsbursky <skinsbursky@parallels.com> | 2012-01-31 15:08:29 +0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2012-02-15 00:19:48 -0500 |
| commit | 3b64739fb928c34b13db6b5adcb0d3efb19e78be (patch) | |
| tree | d3a0e8293b2da6d816c47939675e00da22c576d9 /fs/lockd | |
| parent | 0e1cb5c0aad1c37a4eee6db45f52c0b3869db2cc (diff) | |
| download | lwn-3b64739fb928c34b13db6b5adcb0d3efb19e78be.tar.gz lwn-3b64739fb928c34b13db6b5adcb0d3efb19e78be.zip | |
Lockd: shutdown NLM hosts in network namespace context
Lockd now managed in network namespace context. And this patch introduces
network namespace related NLM hosts shutdown in case of releasing per-net Lockd
resources.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/lockd')
| -rw-r--r-- | fs/lockd/host.c | 26 | ||||
| -rw-r--r-- | fs/lockd/svc.c | 4 |
2 files changed, 22 insertions, 8 deletions
diff --git a/fs/lockd/host.c b/fs/lockd/host.c index 9ebd91dc42c3..eb75ca7c2d6e 100644 --- a/fs/lockd/host.c +++ b/fs/lockd/host.c @@ -565,12 +565,8 @@ void nlm_host_rebooted(const struct nlm_reboot *info) nsm_release(nsm); } -/* - * Shut down the hosts module. - * Note that this routine is called only at server shutdown time. - */ void -nlm_shutdown_hosts(void) +nlm_shutdown_hosts_net(struct net *net) { struct hlist_head *chain; struct hlist_node *pos; @@ -582,6 +578,8 @@ nlm_shutdown_hosts(void) /* First, make all hosts eligible for gc */ dprintk("lockd: nuking all hosts...\n"); for_each_host(host, pos, chain, nlm_server_hosts) { + if (net && host->net != net) + continue; host->h_expires = jiffies - 1; if (host->h_rpcclnt) { rpc_shutdown_client(host->h_rpcclnt); @@ -592,15 +590,29 @@ nlm_shutdown_hosts(void) /* Then, perform a garbage collection pass */ nlm_gc_hosts(); mutex_unlock(&nlm_host_mutex); +} + +/* + * Shut down the hosts module. + * Note that this routine is called only at server shutdown time. + */ +void +nlm_shutdown_hosts(void) +{ + struct hlist_head *chain; + struct hlist_node *pos; + struct nlm_host *host; + + nlm_shutdown_hosts_net(NULL); /* complain if any hosts are left */ if (nrhosts != 0) { printk(KERN_WARNING "lockd: couldn't shutdown host module!\n"); dprintk("lockd: %lu hosts left:\n", nrhosts); for_each_host(host, pos, chain, nlm_server_hosts) { - dprintk(" %s (cnt %d use %d exp %ld)\n", + dprintk(" %s (cnt %d use %d exp %ld net %p)\n", host->h_name, atomic_read(&host->h_count), - host->h_inuse, host->h_expires); + host->h_inuse, host->h_expires, host->net); } } } diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c index 90dec426bfd8..2774e1013b34 100644 --- a/fs/lockd/svc.c +++ b/fs/lockd/svc.c @@ -281,8 +281,10 @@ static void lockd_down_net(struct net *net) struct svc_serv *serv = nlmsvc_rqst->rq_server; if (ln->nlmsvc_users) { - if (--ln->nlmsvc_users == 0) + if (--ln->nlmsvc_users == 0) { + nlm_shutdown_hosts_net(net); svc_shutdown_net(serv, net); + } } else { printk(KERN_ERR "lockd_down_net: no users! task=%p, net=%p\n", nlmsvc_task, net); |